Description

[4-[(2-Chlorophenyl)[4-[Ethyl[(3-Sulphonatophenyl)Methyl]Ammonio]Phenyl]Methylene]Cyclohexa-2,5-Dien-1-Ylidene](Ethyl)(3-Sulphonatobenzyl)Ammonium is a high-purity, sulfonated cationic dye intermediate with a complex triarylmethane structure. This compound is valued for its intense color properties and ionic functionality, making it a critical precursor for specialized dye synthesis. It is primarily required by manufacturers in the textile, ink, and specialty polymer industries seeking to produce vibrant, water-soluble colorants with enhanced fastness and compatibility.

Application

• Textile Dye Intermediate: A key building block for synthesizing cationic dyes used in dyeing acrylic, modacrylic, and other synthetic fibers.
• Inkjet Ink Formulation: Serves as a colorant precursor in the production of high-performance, water-based inks for commercial and industrial printing.
• Biological Staining: Used in the development of histological and cytological stains for microscopy and diagnostic applications.
• Laser Dye Synthesis: Acts as a starting material for creating dyes used in tunable dye lasers and optical applications.
• Ion-Pair Reagent: Employed in analytical chemistry as a charged pairing agent for chromatographic separations.
• Specialty Polymer Colorant: Incorporated into the synthesis of colored polymers and resins where ionic interaction with the matrix is desired.

Basic Information

Product Name	[4-[(2-Chlorophenyl)[4-[Ethyl[(3-Sulphonatophenyl)Methyl]Ammonio]Phenyl]Methylene]Cyclohexa-2,5-Dien-1-Ylidene](Ethyl)(3-Sulphonatobenzyl)Ammonium
CAS No.	25305-97-9
Molecular Formula	C₃₆H₃₄ClN₂O₆S₂
Molecular Weight	689.24 g/mol
Synonyms	Basic Blue 7; Victoria Pure Blue BO; C.I. 42595; Aizen Cathilon Blue GLH; Astra Blue Base; 4-[(2-Chlorophenyl)(4-{ethyl[(3-sulfonatophenyl)methyl]azaniumyl}phenyl)methylidene]-N-ethyl-2,5-cyclohexadien-1-ylidene-3-sulfonatobenzylazanium; Astrazon Blue BG
EINECS	Contact for details

Quality Control

Our production of [4-[(2-Chlorophenyl)[4-[Ethyl[(3-Sulphonatophenyl)Methyl]Ammonio]Phenyl]Methylene]Cyclohexa-2,5-Dien-1-Ylidene](Ethyl)(3-Sulphonatobenzyl)Ammonium adheres to stringent quality protocols to ensure batch-to-batch consistency and purity for industrial applications. Each lot is analyzed against rigorous in-house specifications, which typically include identity confirmation, assay, and impurity profiling. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.